Temperature Effects on the Magnetic Properties of Silicon-Steel Sheets Using Standardized Toroidal Frame

Figure 22

Parameters measured using the new toroidal frame for bipolar and unipolar PWM (with = 1 T, = 50 Hz, , and ): (a) excitation current, (b) induced voltage, (c) flux density, and (d) hysteresis curve.

(a)

(b)

(c)

(d)